Strip-metal-finishing machine.



, Patented oct; l5, man c. c. WEBSTER. STRIP METAL FlNlSl-IING MAEHINE.

(Appx'ication med ont. 17, 1900.) 1

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No. 684,485. Patented Oct. l5,'l9()|. C. C. WEBSTER. STRIP METAL FINISHING MACHINE.

6 Sheets-Sheet 2.

(Application filed Oct. 17, 1900.)

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@gru 6 6.333.066 iev@ Patented oct. l5, 190|. c. c. WEBSTER. STRIP `METAL FINISHING MACHINE.

(Aplieation med oct. 17, 1900.)

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:as on. www um Y No. 684,485. Patented Oct. I5, |90I.

' C. C. WEBSTER.

STRIP METAL FINISHING MACHINE.

(Application led Oct. 17, 1900.)

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No. 684,485. Patented oct. l5, 19m. c. c. WEBSTER.

STRIP METAL FINISHING MACHINE.

(Application iled Oct. 17, 1900.) (No Model.) 6 Sheets-Sheet 5.

Patanted 00L I5, I90l.

C. Cv. WEBSTER. STRIP METAL FINISHING MAEHINE.

(Application led Oct. 17, 19004.)

6 Sheets-.SheetV 6.

(No Modal.)

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UNITED STATES PATENT OFFICE.

OYRUS C. WEBSTER, OF MINNEAPOLIS, MINNESOTA.

STRIP-METAL-FINISHING MACHINE.

To @il whom t may concorre;

Be it known that I, CYRUS C. XVEBSTER, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Strip-lVIetal-FinishngMachines, ofwhich the followingis a specification.

My invention relates to improvements in strip-metal-finishingmachines, the object being to provide means for reducing to even thickness and smoothing the surface of continuous strips of lead or other metal or substances with a minimum amount ot' labor and expense.

In this my invention the strip is carried past trimming mechanism by feed-rollers.

The principal difference in function and operation of this machine from the machine described in my Patent No. 670,352, dated March 19, 1901, for strip-metal-nishing machine is that in my present machine I cut one surface of the strip by rotary and stationary cutters, which cooperate with a slotted bed to hold and straighten the strip, while in said patented invention I cut two surfaces of the strip simultaneously with stationary cutters and then pass the strip between reductionrollers.

In the accompanying drawings, forming part of this specification, Figure 1 is a side elevation of myimproved finishing-machine. Fig. 2 is a plan view of the same, the air-pipe of the rotary cutter being removed. Fig. 3 is a central longitudinal section of the machine. Fig. 4 is an end View facing the stripmetal-straightening mechanism. Fig. 5 is a detail sectional viewtaken on the line Y Y of Fig. 1. Fig. 6 is a detail longitudinal section of a pair of strip-carryin g rollers used with my improved machine. Fig. 7 is a detail View of the tension mechanism adjoining the carrying-wheel, showing the gearing removed and the cam exposed to view. Fig. S is a detail longitudinal section showing the rotary cutter and the springs for guiding the strip as it passes said cutter, and Fig. 9 is a section taken on the lineZ Z of Fig. 1.

In the drawings let A represent the frame, which supports the working parts of my improved machine, and B the bed, which is 684,485, dated October 15, 19011.

I have found in practice that strips of metal are not usually straight and have provided the following described mechanism O for straightening the strip as it passes through the machine. The loose pulley 4 is journaled on the frame A. Its shaft 5? carries the hand-wheel 6 for revolving the pulley when the strip is started into the machine. The upper pulley 7 is journaled on the arms 8, which are pivoted at 9 on the brackets 10. The pulleys 4 and 7 are positioned with their perimeters in vertical alinement and are held together under tension by springs 1l. The arms S, with the pulley, may be raised by the handle 12 when the strip is being started into the machine. The perimeter of the pulley 4 is grooved at 13. The pulley 7 is preferably rubber or other resilient material. Y It is provided with the metal ring 14, which projectsinto the groove 13 of the pulley 4.

In operation the strip is passed by hand be-V tween the groove and ring of the pulleys 4 and 7, as shown in Figs. 1 and 4, by first raising the pulley7by its handle 12 and then releasing it. As the strip is drawn through the l straightening mechanism by the carrying mechanism hereinafter described the pressure of the ring 14 on the face of the strip over the groove 13 bends the strip sufficiently to straighten it as it moves forwardthrough the groove in the stationary bed of the machine. From the straightening mechanism the strip moves through the groove 2 of the bed-plate past the rotary surface-trimming knife 15, which removes the rough surface of the strip. This knife is carried by the shaft 16, which is journaled in the frame and provided with the drive-pulley 17. Springs 18, which aret attached by slotted bars 19, are positioned in front and back of the rotary cutter, so as to hold the strip in the slot and prevent it from chattering. The canopy 20 covers the rotary cutter and is connected by the pipe 2l with an exhaust-fan (not shown) to remove the shavings as the strip passes the cutter.

The

` speed.

l turned by the handle 64.

carrying mechanism F for the stripis located betweenl the rotary cutter and the'straightening mechanism and is mounted upon the frame. This mechanism consists of the carrying-pulley 22, whichis'fastened upon the shaft 23 and positioned with its-perimeter in alinement with the surface of the bed-plate. The pulley is Adriven by the pinion 24, which meshes with the gear 25 on the shaft 26. The shaft 26 also carries the drive-pulley 27,which is operated to move the strip at the desired vThe idle roller 28 is positioned vertically over the carrying-pulley and is journaled by its shaft 29 on the arms 30. These arms are pivoted at- 31 on the standards 32. The roller 28 is preferably rubber or other resilient material and is directed against the moving strip by the lever 33. This lever is connected to the arms 3() and is held adjusted by the spring-catch 34, which is fastened to the frame A by screws 35. By tripping the catch the lever files down and the idle roll is released. Vhen thus released, the strip may be passed by hand into the machine. From the rotary cutter the-strip is carried onto the perimeter of the carrying-wheel 36, which is journaled by its shaft 37 on the frame Aand revolved at a suitable speed in the direction of the arrows shown in Figs. l and 3. The stationary smoothing mechanism G is positioned with the cutting edge ofthe knife 38 directed against the strip. This knife is carried by the carriage 39, which isjournaled on the frame byits axle 40. The lever 41 is attached to this aXle. By raising and lowering the lever the knife is adjusted to and from the surface of the strip. The lever is held by the bolts 42. Tension-rollers 43 and 44 are positioned above and below the smoothing-knife and are directed against the strip on the perimeter of the carrying-wheel. These rollers are journaled on arms 45 and 46, respectively, which are pivoted on the frame of the machine at 47 and 48 and carry levers 49 and 50. The lower lever 50 is raised and lowered, so as to adj ust the tensionroller 44,by the cam l, (shown in Fig. 7,)-and is held by the stop-bo t 52 on the frame. The upper lever 49 is adjusted by the turnbuckle 53 and is connected to the lower lever by the rod 54. The cam for adjusting the lower leverarm is operated by the hand-Wheel 55, which is operatively connected to the shaft 56, carrying the cam, by the screw-gearing 57. The strip is guided on the perimeter of the carrying-wheel by the slotted bars 58, 6l, and 62. The bar 58 is carried upon the frame by its depending arms 59, which are fastened by bolts 60. The bars 61 and 62 are carried by the frame. The latter bar is adjusted to and from the perimeter of the carrying-wheel on the carriage 39 by the screw 63, which is The carrying-wheel 36 is driven by the pulley 65. This pulley is mounted upon the, shaft 66, which is journaled in the .frame and carries the pinion 67. (Shown in Fig. 9.) This pinion meshes with the gear 68, which is carried by the shaft 37 of the drive-wheel. This shaft also carries the pulley 69, which is connected by belt to the pulley 7l. The latter pulley is mounted upon the shaft 72, which carries the spool 73, upon which the strip is wound. The guard 74 is interposed between the carryingwheel and the spool for guiding the strip to the spool and is fastened to the framev by screws 75.

The advantages gained by successively using rotary and stationary cutters are the production of a smoother and more uniform surface on the strip than heretofore and the prevention of uneven stretching of the strip as it passes through the machine. Soft metals, and particularly printers lead, stretch to some extent when cut by stationary cutters, and yet it is desirable to use a stationary cutter to smooth and polish the surface of the strip. It has been found, further, that it is advantageous to use a rotary cutter with such metals for removing rough and uneven surfaces vto prevent the cutter from clogging or from biting the metal when in operation. It is for the purpose of overcoming these defects that I use first a rotary cutter to remove the rough surface of the strip and then a stationary cutter to take a skin cnt off the strip, in combination with carrying and tension mechanism for moving the' strip under the knives and holding it in place, so that it may receive efficient strokes from the knives. The grooved stationary bed assists in thus presenting the strip to the knives and in straightening the strip. This grooved stationary bed therefore coacts with the cutters to produce an operative device.

Having described my invention, what I claim as new, and desire to protect by Letters Patent, is- A l. A strip-metal-finishin g machine, consisting in combination of a stationary bed slotted to receive the strip, a carrying-wheel having its periphery slotted in diametral alinement with the slot in said bed, a tension-roller adjoining the slot in the bed, a feed-roller co"- operating with said tension-roller, a rotary cutter adjoining the slot in said stationary bed, a stationary tool directed against the' strip las it is carried by said carrying-wheel, a pivoted support for said stationary tool, a lever attached to said support, means for adjusting said lever to vary the cut of the stationary tool, and drive mechanism for reVolv-- ing said feed-roller, rot-ary cutter and carrying-wheel.

2. Astrip-metal-inishin g machine, consisting in combination with a bed slotted to receive the strip, of drive mechanism for imparting motion to the strip, and rotary andI stationary trimming-knives facing the strip said driving mechanism and rotary and stationary trimming-knives adapted to coperate with the slotted bed, for the purposes specified.

3. A machine of the class described, con-f Iig sisting in combination with a rotary spool for the strip to wind upon, of a plurality' of carryingand tension rollers, mechanism fortrimming the surfaces and reducing the strip to finished size, and drive mechanism for imparting motion to the strip and spool.

4. A machine of the class described, consisting in combination With a frame, of carrying-rollers, a carrying-wheel, rotary and stationary knives directed against the strip for reducing and finishing its surface, means for operating said parts and moving the strip, mechanism for straightening the strip, and a rotary spool journaled upon the frame With means for driving the same; said parts being arranged on said frame for the strip to first pass through the straightening mechanism,

second, the rotary surface-trim ming mechanism, third, the stationary surface-trimming mechanism, and finally wind upon the spool. 5. The combination in a machine of the class described, of a frame having a bed with a longitudinal slot for receving the strip, a rotary trimming-knife over` said slot, a pair of yielding feed-rollers adjoining said knife, a carryin g-Wheel j ournaled on said frame, the perimeter of which is adapted to move the strip in the slotted bed, a segmental frame adjoining said perimeter, slotted to receive the strip, a stationary surface-trimming knife directed against the strip as it is carried upon the perimeter, tension mechanism for the strip adjustable upon the frame, a spool journaled on the frame adjoining said Wheel, and mechanism for Winding the strip on the spool. In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

CYR-US C. WEBSTER.

Vitnesses:

F. G. BRADBURY, L. E. WIGKMAN. 

